Sr IT Security Engineer

About the Role

Qualifications

• Required
• 7+ years of hands-on experience in Security Engineering and/or Security Operations.
• Experience securing cloud environments, preferably across both AWS and Azure.
• Strong knowledge of SIEM/SOAR platforms, incident response, vulnerability management, and security monitoring.
• Experience supporting security incidents and on-call response activities.
• Strong communication, documentation, and stakeholder management skills.
• Ability to work independently and collaborate across multiple technical teams.
• Preferred
• Experience with Python, PowerShell, Bash, Go, Ansible, or similar automation tools.
• Experience with Infrastructure-as-Code (IaC), Policy-as-Code, and continuous compliance frameworks.
• Knowledge of container and Kubernetes security.
• Experience with AI/LLM security, governance, testing, or monitoring.
• Exposure to regulated or audit-focused environments.
• Industry certifications such as CISSP, CCSP, AZ-500, AWS Security Specialty, GIAC, or equivalent.
• Why Join ACI?
• At ACI Worldwide, you'll help secure the technology that powers payments and commerce around the globe. You'll work with leading cloud and security technologies, collaborate with talented teams, and contribute to protecting critical systems used by financial institutions, merchants, and businesses worldwide.
• Core Capabilities:
• We seek colleagues who embody our core capabilities — these shape our culture and enable us to make a meaningful impact together:
• Ensure Accountability: holding self and others accountable to meet commitments.
• Drives Results: consistently achieving results, even under tough circumstances.
• Customer Focus: building strong customer relationships and delivering customer-centric solutions.
• Cultivate Innovation: creating new and better ways for the organization to be successful.
• Collaborates: building partnerships and working collaboratively with others.
• Courage: stepping up to address difficult issues, saying what needs to be said.
• I n return for your expertise, we offer opportunities for growth, career development, and a competitive compensation and benefits package—all within an innovative and collaborative work environment.
• Are you ready to help us transform the payments ecosystem? To learn more about ACI Worldwide, visit our web site at www.aciworldwide.com